I LOVE using the full-screen view, but then I have no feedback as to the path of the current file. I would suggest that it be added to the status bar at the bottom. Current path would also be nice as well, but not as necessary.

Do you define it as read only within the editor or is it defined as read only on the file system? If it's the latter, ST doesn't automatically apply the read only setting. You may want to use the "on_load(view)" method to check the permissions of the file, then set read_only to true if necessary.